添加BUILD.gn 文件 能生成ninja脚本 但编译不过

build/BUILD.gn

@@ -3,11 +3,40 @@
 # found in the LICENSE file.
 
 config("compiler_defaults") {
-  if (current_os == "linux") {
+  if (board_toolchain == "gcc") {
     cflags = [
       "-fPIC",
       "-pthread",
     ]
+  } else if (board_toolchain == "riscv-gcc"){
+    cflags = [
+      "-mabi=ilp32f",
+      "-march=rv32imafc",
+      "-falign-functions=2",
+      "-msave-restore",
+      "-fno-optimize-strlen",
+      "-freorder-blocks-algorithm=simple",
+      "-fno-schedule-insns",
+      "-fno-inline-small-functions",
+      "-mtune=size",
+      "-mno-small-data-limit=0",
+      "-fno-aggressive-loop-optimizations",
+      "-Wpointer-arith",
+      "-ffunction-sections",
+      "-fdata-sections",
+      "-fno-exceptions",
+      "-fno-short-enums",
+      "-D__LITEOS__M",
+      "-nostartfiles",
+      "-mstrict-align",
+      "-Wno-error=unused-function",
+      "-Wno-error=unused-but-set-variable",
+      "-ffast-math",
+    ]
+    cflags_cc = cflags
+    ldflags = cflags
+    asmflags = cflags
+
   }
 }
 
@@ -19,3 +48,5 @@ config("executable_ldconfig") {
     ]
   }
 }
+
+

build/BUILDCONFIG.gn

@@ -10,7 +10,7 @@
 
 
 if (!defined(board_toolchain)){
-  board_toolchain="gcc"
+  board_toolchain="riscv-gcc"
 }
 
 if (board_toolchain=="riscv-gcc"){

build/buildcfg.gni

@@ -0,0 +1,110 @@
+
+
+import("//build/config.gni")
+
+
+template("kernel_module") {
+  build_gn = rebase_path("BUILD.gn")
+  # 如果只存在一个kernel_module,则auto_config=true
+  cmd = "grep -c '^\s*\(kernel_module\|hdf_driver\)\s*(\s*\S*\s*)\s*{\s*\$' $build_gn"
+  modules_count = exec_script("//build/run_shell_cmd.py", [ cmd ], "value")
+  if (modules_count == 1) {
+    auto_config = true
+  }
+
+  # 如果不存在config("public")或者module_group,则创建config("public")
+  cmd = "if grep -q '^\s*\(config\s*(\s*\"public\"\s*)\|module_group\s*(\s*\"\S*\"\s*)\)\s*{\s*\$' $build_gn; then echo true; else echo false; fi"
+  has_public_config =
+      exec_script("//build/run_shell_cmd.py", [ cmd ], "value")
+  if (!has_public_config && defined(auto_config)) {
+    config("public") {
+      configs = []
+    }
+  }
+
+  # 如果不存在module_group或group,则建立group
+  current_dir_name = get_path_info(rebase_path("."), "file")
+  if (target_name != current_dir_name) {
+    cmd = "if grep -q '^\s*\(module_group\|group\)\s*(\s*\"$current_dir_name\"\s*)\s*{\s*\$' $build_gn; then echo true; else echo false; fi"
+    has_current_dir_group =
+        exec_script("//build/run_shell_cmd.py", [ cmd ], "value")
+    if (!has_current_dir_group && defined(auto_config)) {
+      module_name = target_name
+      group(current_dir_name) {
+        public_deps = [ ":$module_name" ]
+      }
+    }
+  }
+
+  if (defined(invoker.module_switch) && !invoker.module_switch) {
+    group(target_name) {
+      not_needed(invoker, "*")
+    }
+  } else {
+    source_set(target_name) {
+      public_configs = []
+      forward_variables_from(invoker, "*", [ "configs" ])
+      configs += invoker.configs
+      if (has_public_config) {
+        included_public_config = false
+        foreach(cfg, public_configs) {
+          what = "label_no_toolchain"
+          if (get_label_info(cfg, what) == get_label_info(":public", what)) {
+            included_public_config = true
+          }
+        }
+        if (!included_public_config) {
+          public_configs += [ ":public" ]
+        }
+      }
+    }
+  }
+  not_needed([ "auto_config" ])
+}
+
+
+
+template("config") {
+  config(target_name) {
+    # 如果定义了module_switch 并且 module_switch为false 并且 配置名称为 "public"
+    if (defined(invoker.module_switch) && !invoker.module_switch &&
+        target_name == "public") {
+      # 忽略调用者的所有变量，定义任意变量不会导致错误
+      not_needed(invoker, "*")
+      # 将调用者的 configs 变量复制到当前
+      forward_variables_from(invoker, [ "configs" ])
+    } else {
+      forward_variables_from(invoker, "*")
+    }
+  }
+}
+
+template("module_group") {
+  assert(defined(invoker.modules), "modules are must")
+  group(target_name) {
+    deps = []
+    foreach(m, invoker.modules) {
+      deps += [ m ]
+    }
+    if (defined(invoker.deps)) {
+      deps += invoker.deps
+    }
+  }
+  config("public") {
+    configs = []
+    foreach(m, invoker.modules) {
+      configs += [ "$m:public" ]
+    }
+    if (defined(invoker.configs)) {
+      configs += invoker.configs
+    }
+  }
+}
+
+# 使用这个模板时的默认配置
+set_defaults("kernel_module"){
+  configs = [
+  ]
+}
+
+

build/config.gn

@@ -1,17 +0,0 @@
-
-
-if (target_cpu == ""){
-  target_cpu = "x64"
-}
-if (target_os == ""){
-  target_os = "linux"
-}
-if (current_cpu == ""){
-  current_cpu = target_cpu
-}
-if (current_os == ""){
-  current_os = target_os
-}
-
-set_default_toolchain(":gcc")
-

build/config.gni

@@ -0,0 +1,33 @@
+fastboot_mode=""
+flash_size="4"
+psram_enable="1"
+psram_size="8"
+layout_index="8"
+HW_CHIP_ID="HZ"
+PROTO_TYPE="p12087"
+rf_enable="1"
+dual_enable="1"
+build_amp_type="0"
+sec_cpu_enable="1"
+cco="1"
+os_type="freertos"
+new_type_cco=""
+soft_float_enable=""
+smart_cco_sta=""
+ckb=""
+gdb_debug_enable=""
+disable_print="0"
+hw_platform_ver="2"
+gcc="riscv"
+target="kunlun3"
+ftm_build="0"
+opt_build="1"
+flash_build="1"
+cpu1_build="0"
+mpu_enable="0"
+release_build="0"
+product_line="PLC"
+PLATFORM="CHIP"
+APP="0"
+FLASH_SIZE="4"
+kl_ld_script="//startup/ldscripts/riscv3/link_psram_8m_cco_plc_only.ld"

build/run_shell_cmd.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2020 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import subprocess
+import sys
+
+
+def main():
+    return subprocess.Popen(' '.join(sys.argv[1:]), shell=True).wait()
+
+
+if __name__ == '__main__':
+    sys.exit(main())